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There are two C libraries which provide a socket interface to the
pigpio daemon.&nbsp; They provide an interface very similar to the
pigpio Python module.<br>
<ul>
<li>The original <a href="./pdif.html">pigpiod_if</a> library is
now deprecated and will no longer be updated.&nbsp; This library is
limited to controlling one Pi at a time.</li>
</ul>
<ul>
<li>The new <a href="./pdif2.html">pigpiod_if2</a> library which
should be used for new code.&nbsp; This library allows multiple Pis
to be controlled at one time.</li>
</ul>
Additional details of the pigpio <a href="./sif.html">socket</a>
interface.<br>
<br>
Additional details of the pigpio <a href="./pif.html">pipe</a>
interface.<br>
<br>
<a href="pig2vcd.html">pig2vcd</a> is a utility which converts
pigpio notifications into the VCD (Value Change Dump) format.&nbsp;
VCD can be read by many programs, in particular <a href=
"http://gtkwave.sourceforge.net/">GTKWave</a>.
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